Toyota 17111-0P030 Manifold, Intake

To remove the intake manifold, start by relieving the fuel system pressure and disconnecting the negative battery terminal. Remove the air intake duct, radiator, and cowl cover assembly. For 2009 and earlier models, remove the fuel rail and injectors, throttle linkage, and throttle body from the intake manifold. Label and detach the PCV and vacuum hoses connected to the rear of the intake manifold. Raise the vehicle and remove the manifold lower mounting bolts. From above, remove the intake manifold upper mounting nuts and bolts, along with the manifold, gasket, and manifold insulator. For 2010 and later models, remove the engine cover, disconnect vacuum hoses and ventilation tubes, and remove the throttle body from the intake manifold. Disconnect the fuel intake line from the fuel rail and disconnect the electrical connectors and harness mounting fasteners. Disconnect and remove the main harness connector from the intake manifold and tumble control valves. Apply battery voltage to the tumble control valve electrical connector to close the valve. Remove the intake manifold support bracket and disconnect the vacuum switching valve assembly electrical connector. Unscrew the intake manifold mounting fasteners and remove the manifold. To install, clean the mating surfaces and check for warpage. Press a new gasket into the grooves on the intake manifold and install it over the studs on the cylinder head. Tighten the manifold-to-cylinder head nuts or bolts in three or four equal steps. Install the remaining parts in reverse order and check for coolant and vacuum leaks.

Pinch off the coolant hoses and label them to avoid confusion later.

The fuel rail and injectors are removed as an assembly. The electronic throttle motor connector is disconnected, and the throttle body is removed. Additionally, PCV and vacuum hoses connected to the rear of the intake manifold are labeled and detached.

Disconnect the accelerator cable or the electronic throttle control system electrical connector.

No, it is not necessary to remove the fuel rail, but you must disconnect the fuel supply and return line connections.

Disconnect the cable from the negative terminal of the battery. If you plan on removing the lower intake manifold, relieve the fuel system pressure before disconnecting the battery.